This is a cool video and I like the piece. One suggestion would be to add some ambient nature/outdoor sound effects, at least at the beginning of the video, to set the audience in the location before you start playing. The visuals are lovely but without any sound, I wasn't sure at first if I was actually watching a green screen!

Kjell, thank you! The audio recording was already done so I was playing along much as would happen in a typical music video. The pianist version of lip syncing basically.

John - thank you for the feedback. I had considered doing what you describe but in experimenting with it I wasn’t able to find a solution I was satisfied with. Either way it was a good learning experience for next time.

What mountains are you surrounded by? Finger syncing, must be a new recording term. It is excusable since the peaks are covered with snow, so playing piano in near freezing temps can't be that easy. I liked the piece and even more the fact that you did it outdoors. I assume you also packed in a generator to produce sound and a few gallons of fuel, right?

Since I am a perfectionist let me add a few things I would have added on the production, not on the composition which I find very pleasant.

The sound of the piano sounds too close to me, which is a bit in contrast with the image of the landscape. I would have used a more spacial setup to fit better in the landscape and as someone suggested would have added a bit of sounds in the beginning (although I agree with you is not easy to find the right ones)

Finger sync is very hard, so nothing to add you did already a good job.

For the final editing I would have added a LUT to give a special color setting and make it more cinematic.